knowledge consisting in contemplation of misery
Dictionary Definition :
Definition[1]
:
ādīnavānupassanā-ñāṇa: 'knowledge consisting in contemplation of misery', is one of the 8 kinds of insight (vipassanā) that form the 'purification of the knowledge and vision of the path-progress (s. visuddhi, VI. 4). It is further one of the 18 chief kinds of insight (s. vipassanā).
Source
:
Buddhist Dictionary, Manual of Buddhist Terms and Doctrines, by NYANATILOKA MAHATHERA